<template>
  <view>
    <view class="search-box">
      <my-search @click="gotoSearch"></my-search>
    </view>
    <!-- 轮播图区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <!-- 循环渲染轮播图的 item 项 -->
      <swiper-item v-for="(item, i) in swiperList" :key="i">
        <navigator class="swiper-item" :url="'/subpkg/goods_detail/goods_detail'+'?goods_id='+item.goods_id">
          <!-- 动态绑定图片的 src 属性 -->
          <image :src="item.image_src"></image>
        </navigator>
      </swiper-item>
    </swiper>
    <!--分类导航区域-->
    <view class="nav-list">
      <view class="nav-item" v-for="(item,i) in navList" :key="i" @click="navClickHanlder(item)">
        <image :src="item.image_src" class="nav-img"></image>
      </view>
    </view>
    <!--楼层区域-->
    <view class="floor-list">
      <view class="floor-item" v-for="(item,i) in floorList" :key="i">
        <image :src="item.floor_title.image_src" class="floor-title"></image>
        <!--楼层的图片区域-->
        <view class="floor-img-box">
          <navigator class="left-img-box" :url="item.product_list[0].url">
            <!--图片左侧大图片的盒子-->
            <image :src="item.product_list[0].image_src" :style="{width: item.product_list[0].image_width + 'rpx'}"
              mode="widthFix"></image>
          </navigator>
          <view class="right-img-box">
            <navigator class="right-img-item" v-for="(item2,i2) in item.product_list" :key="i2" v-if="i2!==0"
              :url="item2.url">
              <image :src="item2.image_src" :style="{width: item2.image_width+'rpx'}" mode="widthFix"></image>
            </navigator>
          </view>
        </view>
      </view>
    </view>
  </view>

</template>

<script>
  import {
    mapGetters
  } from 'vuex'
  import badgeMix from '@/mixins/tabbar-badge.js'

  export default {
    // 将 badgeMix 混入到当前的页面中进行使用
    mixins: [badgeMix],
    data() {
      return {
        // 1. 轮播图的数据列表，默认为空数组
        swiperList: [],
        navList: [],
        //楼层的数据
        floorList: []
      };
    },
    computed: {
      ...mapGetters('m_cart', ['total'])
    },
    onShow() {
      //tabBar购物车数量赋值
      this.setBadge()
    },
    onLoad() {
      // 2. 在小程序页面刚加载的时候，调用获取轮播图数据的方法
      this.getSwiperList()
      this.getNavlist()
      this.getFloorList()
    },
    methods: {
      async setBadge() {
        console.log('total>>>>>' + this.total)
        uni.setTabBarBadge({
          index: 2,
          text: this.total + ''
        })
      },
      // 3. 获取轮播图数据的方法
      async getSwiperList() {
        // 3.1 发起请求
        const {
          data: res
        } = await uni.$http.get('https://api-hmugo-web.itheima.net/api/public/v1/home/swiperdata')
        // 3.2 请求失败
        if (res.meta.status !== 200) {
          return uni.showToast({
            title: '数据请求失败！',
            duration: 1500,
            icon: 'none',
          })
        } else {
          // 3.3 请求成功，为 data 中的数据赋值
          this.swiperList = res.message
          return uni.$showMsg()
        }
      },
      async getNavlist() {
        const {
          data: res
        } = await uni.$http.get('https://api-hmugo-web.itheima.net/api/public/v1/home/catitems')
        if (res.meta.status !== 200) return uni.$showMsg()
        this.navList = res.message
      },
      navClickHanlder(item) {
        switch (item.name) {
          case "首页":
            uni.switchTab({
              url: "/pages/home/home"
            })
            break;
          case "分类":
            uni.switchTab({
              url: "/pages/cate/cate"
            })
            break;
          case "购物车":
            uni.switchTab({
              url: "/pages//pages/cart/cart"
            })
            break;
          case "我的":
            uni.switchTab({
              url: "/pages/my/my"
            })
            break;
          default:
            break;
        }
      },
      async getFloorList() {
        const {
          data: res
        } = await uni.$http.get('https://api-hmugo-web.itheima.net/api/public/v1/home/floordata')
        if (res.meta.status !== 200) return uni.$showMsg()
        res.message.forEach(floor => {
          floor.product_list.forEach(prod => {
            prod.url = '/subpkg/goods_list/goods_list?' + prod.navigator_url.split('?')[1]
          })
        })
        this.floorList = res.message
      },
      gotoSearch() {
        uni.navigateTo({
          url: '/subpkg/search/search'
        })
      }
    }
  }
</script>

<style lang="scss">
  swiper {
    height: 330rpx;

    .swiper-item,
    image {
      height: 100%;
      width: 100%;
    }
  }

  .nav-list {
    display: flex;
    justify-content: space-around;
    margin: 15px 0;

    .nav-img {
      width: 128rpx;
      height: 140rpx;
    }
  }

  .floor-title {
    width: 100%;
    height: 60rpx;
  }

  .right-img-box {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
  }

  .floor-img-box {
    display: flex;
  }

  .search-box {
    //设置位置吸顶
    position: sticky;
    //吸顶的位置
    top: 0;
    //提高层级，防止被轮播图覆盖
    z-index: 999;
  }
</style>
